Reserve Bank has decided to create a central repository on large borrowers - both individuals and entities - with exposure of more than Rs 10 crore to help banks deal with credit risks.

The RBI, in a notification, said that it is necessary to build a repository of large credits and share with the banks for enabling them to be aware of building leverage and common exposures.

CNBC-TV18's Latha Venkatesh says RBI used to do this 10 years ago. Then it got redirected to CIBIL. Banks have been wary of sharing details with CIBIL because they are always afraid that other banks with whom CIBIL shares the information will poach their clients, but now it has become matter of banking security interest.

A Credit Suisse report said 10 groups have become five times more indebted since 2008, their loans have gone up five times and their exposure to the banking system is 13 percent of the total loans and 98 percent of the networth of the banks. So if even one or two of them fail, then it can endanger the entire banking system.